Event between (444745) 07JF43 and star GA0780:05432827 with event index number of 1127382
Geocentric closest approach at 2021/04/14 15:50:02 UTC
J2000 position of star is 16:41:33.9 -11:44:04
Equinox of date position of star is 16:42:44.6 -11:46:25
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 160 degrees from the moon.
Moon is 6% illuminated.
TNO apparent brightness V=21.3
TNO is 36.9 AU from the Sun
and 36.2 AU from the Earth.
The TNO is moving 16.2
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 88 seconds.
The 1-sigma cross-track error in the shadow position is
1346 km.
The TNO has an absolute magnitude Hv=5.5
Diameter=485.3 km assuming a 5% albedo -- 30.0 sec chord
Diameter=198.1 km assuming a 30% albedo -- 12.3 sec chord
Dynamical classification is 3:2E
Star training set for 444745, (2021/04/14 15:50UT) Object RA Dec mag sep mel Antares 16:30:43.0 -26:28:39 0.9 14.97 162 13Zet Oph 16:38:20.0 -10:36:31 2.6 1.59 161 20 Oph 16:51:00.8 -10:49:08 4.6 2.24 158 PPM 232014 16:42:18.9 -11:52:42 7.4 0.15 160 444745 16:42:44.9 -11:46:26 16.6 160 Positions are for equinox of date
Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.
Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.
Star training set for 444745, (2021/04/14 15:50UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 14.97 162 13Zet Oph 16:37:09.6 -10:34:01 2.6 1.59 161 20 Oph 16:49:50.2 -10:47:01 4.6 2.24 158 PPM 232014 16:41:07.8 -11:50:19 7.4 0.15 160 444745 16:41:33.9 -11:44:04 16.6 160 Positions are for J2000
Event circumstances last updated at 2021/03/11 01:30:37 UT
Marc W. Buie, Southwest Research Institute